Vehicle-tire.



' N 0 M 0 D E L.

l ini/enfor Patented July 5, 1904.

PATENT OEETEE.

CHARLES MOTZ, OF AKRON, OHIO.

VEHICLE-TIRE.

SPECIFICATION forming part of Letters Patent No. 763,996, dated July 5,1904.

Application filedDecember 7, 1903. Serial No. 184,092. (No model.)

To (all whom it may concern:

Be it known that I, CHARLES Mo'rz, of Akron,in the county ofSummit,State of Ohio, have invented certain new and useful Improvementsin Vehicle-Tires; and I hereby declare the following to be a full,clear, and exact description of the invention, reference being had tothe accompanying drawings, forminga part of the same, and to the lettersof reference marked thereon.

This invention relates to vehicle-tires having a rubber or elastic treadportion, and more particularly to that class wherein the rubber orelastic tread is held in a channeled wheelrim. It has heretofore beenproposed to secure such tires to the wheel by means of a channeled metalrim having generally a fiat base and upwardly-extending marginal flangesand inwardly-extending portions, in which channel the rubber tire isseated, said rubber tire being provided with wires extending back andforth in the elastic strip and held in position by the inturned flangesof the rim. It has also been proposed in tires of similar constructionto use one circumferential wire in the center of the tire overcross-wires and annular side plates, having inturned flanges of the rimon opposite sides to secure the tire to the rim. I do not know of anytire ever having been proposed having the peculiar and novel details ofconstruction and combination and arrangements of parts, as I will nowdescribe, and point out in the appended claims.

In the accompanying drawings, Figure l is a perspective View showing anundercut channeled rim, elastic tire, cross-wires, and circumferentialwires. Fig. 2 is a cross-sectional view of the same.

Like letters of reference in both igures indicate the same parts.

The letter A in the accompanying drawings indicates the rim or channelof a wheel, which is secured to the felly in any preferred manner andhas upwardly-extending marginal flanges B, with inwardly-extendingportions O, thereby forming an undercut channel for the tire. The tireD, of any desired or preferred shape in cross-section, is preferablyrubber and has in each side at a suitable distance from the baselongitudinally-extending grooves E.

In order to {irinly secure the tire D in the undercuts of the channeledrim and toprevent -the tire from turning out of the channel by lateralstrain, diagonally extending crosswires or rigid retainers Fare arrangedin the saine in parallel position and extend under the overhangingportion of the channel C, such construction being entirely practical,because when the tire is being placed within the channel thediagonally-extending wires will yield or give suficiently with therubber when pressure is applied so as to allow the tire to enter thechannel. It has also been found in solid tires of light constructionwhen used as tractors on a power-propelled vehicle that under severelongitudinal strain the tire stretches and at the same time narrows incross-section, so as to permit the tire to disengage the undercutportion of the channel. In order to overcome this difficulty, endlesscircumferential wires G G are placed inside of the channelrim and overthe diagonal cross-wires F outside of the elastic tire.

In operation it will be readily seen that should the tire stretch, andthereby narrow in cross-section, the circumferential wires which rest onthe cross-wires must necessarily in the narrowing process draw in withthe tire, and thereby preventing the tire from disengaging itself fromthe channel.

Having thus described my invention, whatl the metallic rirn having theupwardly and inwardly extending marginal flanges, of the elastic tireformed with longitudinally-extending side grooves with which cooperatethe inturned flanges of the rim, metal bars or stays extendingdiagonally of the tire in parallel inelosed portion havingtlleir endsproject un- I0 and having tl1e1r ends projeetnnderl theindertlie'overhanglngxportionof the run, and turned flanges of the rim;substantially as deendless' elrenrn-ferential retalning Wires 1nscribed. tension located over or above said cross-Wires 5 A 3. 1n avehicle-tire the combination with along each side of the elastic tire.

the rim having' hooked lateral edges, of the CHARLES MOTZ.

elastic tire havinga portion adapted to fitsaid WVitnesses:

rim and provided with diagonally-extending WM. WOLF,

parallel metal bars o1' retaining-pieces in its WM. A. DURAND.

